Tim Keogh

A million-square-foot facility for growing marijuana is scheduled to open this fall in a small town in Bristol County, Massachusetts.

The Freetown, MA property will feature a state-of-the-art medical cannabis cultivation facility known as the Massachusetts Medical Cannabis Center.

The center will be one of the largest marijuana cultivation facilities in the United States.

The first phase of construction will begin in March and will include a 130,000 square-foot facility for the cultivation and processing of marijuana plants and a 30,000 suare-foot space for the research and development of marijuana goods.

AmeriCann, a publicly traded company based in Denver, purchased the land this fall for $4,475,000 from Boston Beer Company, the makers of Samuel Adams.

"This is a project that has been in the works for quite a while," said AmeriCann CEO Tim Keogh.

All marijuana cultivated in the Freetown facility will be available for sale only in Massachusetts, as required by state law.